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Verification, Validation, and Uncertainty Quantification (VVUQ) for global challenge applications


HiDALGO2 project together with CIRCE and SEAVEA projects organise a joint hackathon that focuses on enabling Verification, Validation, and Uncertainty Quantification (VVUQ) for global challenge applications (e.g., those used in HiDALGO2 and CIRCE) using the SEAVEA toolkit (SEAVEAtk).


Objective of the event

During the event, participants will learn about the SEAVEAtk components aiming to:

-Create VVUQ procedures (EasyVVUQ).

-Facilitate the creation of surrogate models for multiscale simulations (EasySurrogate).

-Automate the complex workflows emerging from these procedures using HPC resources (FabSim3).

-Enable the efficient execution of large numbers of jobs on computational resources (QCG Pilot Job Manager and RADICAL Cybertools).

-Make creating coupled multiscale simulations easy, and then enable efficient Uncertainty Quantification of such models using advanced semi-intrusive algorithms (MUSCLE3).

-Perform surrogate modelling using Gaussian Processes (MOGP).

Specifically for this Hackathon, we will introduce the Multipurpose Uncertainty Quantification and Sensitivity Analysis (mUQSA) web-based Graphical User Interface, which supports application developers and users lacking in-depth knowledge of the subject, and integrates with SEAVEAtk. mUQSA automates and streamlines the efficient execution of UQ computations on large-scale High-Performance Computing systems.

During the Hackathon, participants will have the opportunity to engage in hands-on learning by interacting with the SEAVEAtk experts, who will help in applying their choice of SEAVEAtk tools to their own codes and applications. Existing SEAVEAtk users are also welcome, as the team will offer support to add more rigorous VVUQ to their applications. Detailed information is available at:


Target participants
High-Performance Computer application researcher


Prerequisites and registration

The hackathon will take place over three days, from 5-7th of June 2024,  9:00 – 17:00  Central European Summer Time (CEST) and it is a hybrid event. It will take place physically at the premises of our partner, High-Performance Computing Center Stuttgart , Germany, and online. You can register at this link:  by 31 May 2024.


Event type


Entry level


Registration and Fee

The event is open and free of charge for all. For more information and inquiries, you can contact:  and  


HLRS - High Performance Computing Center Stuttgart,  Nobelstraße 19, 70569 Stuttgart, Germany

Presenters and programme 

During this event EXCELLERAT partner KTH will present the UQit toolbox.  

Pogramme is available here. 



HiDALGO2 project together with CIRCE and SEAVEA projects